And ventilating



15 scribed and claimed.

' Patented Feb. 4; 1930 enemies A; Moonn, or" EDINA, mmivnso'ra HEATING,.HUMID IF YI1\TG, Ann VENTILATING APPLIA CE I.

J Application filed May 1, 1926. SerialN'o. 106,141.

. My invention relates to improvements in heating, ventilating and humidifying appliances. 'i

An object of the invention is to provide an 5 efficient device/of thepresent nature which is simple, durable and inexpensive,and which is readily adapted to be constructed in unitary formfor convenience in shipment and installation.

With theforegoing and other objects, in.

view, which'will appear in the following description, the invention resides in the novel combination'and arrangement of parts and in thedetails ofconstruction hereinafter de- In the drawing, Fig. 1 is a plan view of an appliance embodying my invention; Fig. 2 is a vertical sectionalview taken-on the line 22 of Fig. 1 and representing Walls, floor and ceiling of a structure forming a chamber in which the appliance is installed; Fig. 3 is -also a vertical sectional view the same'being taken as on theline'3..3 of Figfi, and Fig.

4 is a horizontal sectional view of the ap-v pliance taken on the line 1-4'of'Fig. 3. 7

Referring to the drawing, it willbe ob-' served that the represented 'walls 10, floor 11 and ceiling 12 comprise a structure form ing a chamber A. The illustrated embodiment of my invention, shown as installed in the chamber A, includes an upright casing 13 of sheet metal provided with a slightly el evated floor 14 anda top 15,,said casing being fitted at its lower margin with a reinforcing footing 16 of angle iron. An airingressduct is provided, the same including a horizontal pipe 17 and an upright pipe 18, the former extending transversely through the casing 13 atone side "of the middle thereof. .The

upright pipe 18 is joined at its lower end with pipe 17 withinthecasing 13 and extends upward through the top 15 of the casing to a point near the ceiling of chamber A. One

end of the horizontal pipe 17 projecting from the-casing13, is extended to reach through a wall 10 of the chamber A, a'damper 19 being fittedv insaid extended end of'sa-id pipe and accessible from within'thechamber. The other end of pipe 17 is fitted witha removable cap 20. Within said horizontal pipe 17 are a 5 pair of spaced, segmental end plates 21, which together with this pipe form a water recep' tacle B directly beneath the lower end of the upright pipe 18. Supplying said receptacle Bisv a waterpipe': 22, the same being'fitted 5 witlran ordinary cut-off valve 23-and also with a conventional float feed valve 24 actuated by a float lever. 25 carrying afloat 26 at the free end thereof. i 1 This valve 24 operated by the float 26 and lever 25 insures a constant given level of water within the receptacleiB. Burners 27 disposed beneath the Y water receptacle-Bf in the horizontalpipe 17 I are fed from a gas pipe 28 and heat, not only the interior of casing 13, but pipes I17 and 18 and thewaterin receptacle B, as well. An fair egress ductis'ialso provided, the same including an upright pipe'29 and a horizontal pipe .30 branching off from said pipe29 near-the upper endthereof and extending 7 series of openings 31 formed in the casing 13 -alongthe lower marginal portion thereof. Theupper end of pipe 29, extending through the top 15 of the casing 13, is secured to the top 15 by solder or other means, likeexpedients being employed to secure pipes 17. and 18 to the casing 13 and top '15 respectively,

whereby tight and firm joints'between said pipesand casing'members arefprovided. Traversing the casing 13 between the up-- right pipes 18and 29 is a baflie wall 32. the p lower end thereof meeting the floor 141 of the casing 13and the upper endstopping short of I length with the pipe 29 and not only serves to V reinforce said pipe but is in turn reinforced thereby. This feature is advantageous in that said wall and pipe and their fastenings to the casing are protected during the handling and shipping of the appliance. This pipe 29 is formed with a series of openings 33 in the side thereof near its bottom to provide communication between the down fiue D and said pipe. The casing 13 is also formed with an opening 34, near the bottom thereof, on the side of the baifle Wall 32 opposite said pipe 29 to afiord communicationbetween the chamber A and the up fine C, whereby air may be admitted to said up flue to s upport combustion at the burners 27 and to be heated thereby. Near the burners 27 are guard plates 35 and 36, the former being mounted on the casing 13 to shield the same from flames of the burners 27 and the latter being mounted on the bafH-e wall 32 to shield said wall.

A damper 37, fitted within the upper end of upright pipe 29, above the junction of the horizontal pipe 30 therewith, is normally closed, but maybe opened at times in the use of the appliance which will now be described.

To heat, ventilate and humidify, thecutoff valve 23 in the water pipe 22 is opened and so also'is the damper 19 inpipe 17, the cap 20 being fixed in place'on the end of said pipe 17 and the damper 37 in pipe 29 closed.

Upon the lighting of the burners 27, air enters the opening 34: in the casing 13 from the chamber A, passing intothe up flue C where it is heated by said burners. Thus heated, said air rises to the upper portion of the up flue C and is thence drawn down the down flue D, through the openings 33, into the pipe 29 by the up draft existing therein. This up draft in the pipe 29 is increased by reason of said pipe being heated at the exterior thereof by the down traveling hot air and gases in the down flue D. Fresh outer air is drawn into the horizontal pipe 17 where it picks up vapor from the heated water in the receptacle B. the draft urging said air into the horizontal pipe 17 being created by the heating of the upright pipe 18, said draft causing the incoming, moisture treated air to rise in pipe 18 and to be further heated therein. Entering the upper portion of the chamber A from pipe 18, the fresh heated and moistened air descends by gravity to the floor of the chamber A along the relatively cold walls of said chamber. Following the floor 11 of the chamber A, said now comparatively cool air enters the openings 31 in the casing 13 beneath the floor 14 thereof and is exhausted upwardly and out of the chamber A through the pipe 29 and pipe 30 together with the hot air and gases entering said pipe 29 from the down flue D. Thus, it will be understood that fresh air heated and moistened is brought into the chamber A and after circulating therethrough is exhausted to the outside.

Excessive moisture in the air in chamber A may be avoided by opening the damper 37 more or less and thereby permitting the escape of the air of greatest percentage of hu midity from the chamber A at the ceiling thereof. Heating and ventilating may be accomplished without humidifying the air by v leaving the damper 19 in pipe 17 open, cap 20 applied to pipe 17 and cut-off valve 23 closed. Heating and internal circulation of air in the chamber A without ventilation may be had by closing damper 19 in pipe 17 and removing cap 20 from said pipe. No ingress of air being provided, the air within the chamber A circulates fromthe lower to the upper portion thereof through the pipes 17 and 18. Also,

ventilation and internal circulation may be prising a casing having a floor and a top, an

ingress duct including a horizontal pipe extending through the casing and supported thereby, one end of said pip-e communicating with the outer air through a wall of the chamber, a closure for the other end of said pipe, said ingress duct further including an upright pipe connected at its lower end with said horizontal pipe within the casing and extending through said top to a point near the ceiling of the chamber, an egress duct including an upright pipe supported by said floor and top, the lower end of said pipe opening through said floor and the upper end thereof extending through said top to a point near the ceiling of the chamber, said egress 'duct further including a horizontal pipe branching off from said second upright pipe near the upper end thereof and communicating with the outer air through a wall of the chamber, an upright battle wall traversing the casing between said two upright pipes and extending from the floor of the casing to a point near the top thereof, said casing having an opening beneath said floor and also having an opening above the floor on the side of the baffle wall beneath said first horizontal pipe, said second upright pipe having an opening in the side thereof above said floor near the same, a receptacle for water within said first horizontal pipe, and a burner with-- I in the casing beneath saidpipe for heating p the water in said receptacle.

2. The combination with a structure form- .ing. a chamber, of an appliance therein comprlslng a casing having a floor and a top, an

ingress duct for admitting 'air from the outside at the lower portion of the chamber and 7 supported by said casing and the top thereof,

an egress duct for exhausting air from the lower portion ofthe chamber to the outside at the upper portion of said chamber, said egress duct including a pipe enclosed, in part, within the casing and supported by the floor and top thereof, an upright baflie wall traversing the casing between said upright pipes and rising from said floor to a point near the top of the casing, said wall being braced by and serving to brace one of said pipes, said wall providing an up flue about the first pipe and .a down flue about the second pipe, the second pipe having can open ing in the side thereof affording communication between the same and said down flue near the floor of the casing, said casing, having an opening near the bottom thereof affording communication between the lower portion of the chamber and the corresponde ing portion ofsaid up flue, and a heating element within the casing in said up flue for heating said first pipe.

I 3. An appliance comprising a casing having a floor and a top, an ingress duct includ ing a horizontal pipe extending into thecasing above said floor, said ingress duct further including an upright pipe connected at its lower end with said horizontal pipe within the casing and extending through said top, e

an egress duct including an upright pipe supported by said floor and top, the lower end of said last mentioned pipe opening through said floor and the upper end thereof extending through said top, an upright baffle Wall traversing the casing between said two upright pipes and extending from the floor of the casing to a point near the top thereof, said wall engaging said second upright pipe,

said casing having an opening beneath said floorand also having an opening above the [floor on the side of thebaffle wall beneath pipe.

said first horizontal pipe, said second upright pipe having an'opening in the side thereof upright-pipe, a casing enclosing corresponding portions of said pipes, a burner within the casing, an upright baffle plate extending across the interior of said casing between said pipes and, together with said casing, forming one flue, opening abovethe burners, and

a second flue in reversed continuation of said first flue, said second flue communlcating at 1 above and near said floor, and a burner within the casing beneath said first horizontal 4. The combination with a structure providing a chamber, of an appliancecompris ing an ingress duct for admitting outer air into the chamber and conducting it upwardly therein to the upper portion thereof, and an egress duct for conducting air upwardly from the lower portion of said chamber to the outside, each of said ducts including an 

